This paper uses two polymers, PVK and MEHPPV, to produce white light in a miscible manner. The ratio of PVK and MEHPPV to prepare white light is 80:2, and the energy gap of PVK is larger than that of MEHPPV. The main component PVK is not only a matrix, but also an excitation energy donor, which can help the miscible system emit high-efficiency white light. We use the immiscible characteristics of PVK and MEHPPV to prevent the energy from being completely converted, so that blue light and red light can be emitted simultaneously in the system. In this way, white light is produced, and the CIE coordinates are (0.27, 0.33). Keywords: energy conversion, white light
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